Halfling also works incredibly well with cheap Planeswalkers
You get to draw cards, and with one of the best colorless ETB effects in the game you get protection from everything, which buys you time to actually put your cards to good use
Im still really bullish about this sets long-term profile, especially because of the Ultimate Box Toppers
Collective Brutality and Collective Defiance Both of these cards see a certain amount of Pioneer play and are fun executions of the Escalate mechanic
While Thrill of Possibility wont increase the card quantity of your hand, it could increase the card quality of your hand if you discard a card you werent going to use anyway
Winning if you would draw from an empty library is nothing new, but this villain is blacks first version of it, so you can now run a mono-black combo with this and Demonic Consultation or Tainted Pact